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利用多层交换机实现不同VLAN之间通信的方法

17-10-19        来源:[db:作者]  
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实验图片在附件里面

基本配置

PC1 IP:192.168.1.1 子网掩码:255.255.255.0 网关:162.168.1.254

PC2 IP:192.168.2.1 子网掩码:255.255.255.0 网关:162.168.2.254

PC3 IP:192.168.3.1 子网掩码:255.255.255.0 网关:162.168.3.254

还需要一台二层交换机SW1以及三层交换机SW2

PC1的端口与交换机SW1端口f0/2相连接,PC2的端口与交换机SW1端口f0/3相连接,

PC3的端口与交换机SW1端口f0/4相连接,交换机SW1端口f0/1与三层交换机f0/1端口

相连接。

之后进行设备的命令配置

配置交换机SW1

Switch>enable //切换模式

Switch#configureterminal

Enterconfigurationcommands,oneperline.EndwithCNTL/Z.

Switch(config)#hostnameSW1 //修改主机名

SW1(config)#vlan10 //创建VLAN

SW1(config-vlan)#vlan20

SW1(config-vlan)#vlan30

SW1(config-vlan)#exit //退出

SW1(config)#interfacefastEthernet0/2 //进入端口

SW1(config-if)#switchportmodeaccess //将端口模式改为access

SW1(config-if)#switchportaccessvlan10 //将端口f0/2加入VLAN10

SW1(config-if)#exit

SW1(config)#interfacefastEthernet0/3

SW1(config-if)#switchportmodeaccess

SW1(config-if)#switchportaccessvlan20

SW1(config-if)#noshutdown

SW1(config-if)#exit

SW1(config)#interfacefastEthernet0/4

SW1(config-if)#switchportmodeaccess

SW1(config-if)#switchportaccessvlan30

SW1(config-if)#noshutdown

SW1(config-if)#eixt

SW1(config)#exit

SW1#

%SYS-5-CONFIG_I:Configuredfromconsolebyconsole

SW1#showvlan //查看VLAN

VLANNameStatusPorts

----------------------------------------------------------------------------

1defaultactiveFa0/1,Fa0/5,Fa0/6,Fa0/7

Fa0/8,Fa0/9,Fa0/10,Fa0/11

Fa0/12,Fa0/13,Fa0/14,Fa0/15

Fa0/16,Fa0/17,Fa0/18,Fa0/19

Fa0/20,Fa0/21,Fa0/22,Fa0/23

Fa0/24,Gig0/1,Gig0/2

10VLAN0010activeFa0/2

20VLAN0020activeFa0/3

30VLAN0030activeFa0/4

1002fddi-defaultact/unsup

1003token-ring-defaultact/unsup

1004fddinet-defaultact/unsup

1005trnet-defaultact/unsup

VLANTypeSAIDMTUParentRingNoBridgeNoStpBrdgModeTrans1Trans2

--------------------------------------------------------------------

1enet1000011500-----00

10enet1000101500-----00

20enet1000201500-----00

30enet1000301500-----00

1002fddi1010021500-----00

1003tr1010031500-----00

1004fdnet1010041500---ieee-00

1005trnet1010051500---ibm-00

RemoteSPANVLANs

------------------------------------------------------------------------------

PrimarySecondaryTypePorts

---------------------------------------------------------------------------

进入三层交换机SW2进行命令配置

Switch>enable

Switch#configureterminal

Enterconfigurationcommands,oneperline.EndwithCNTL/Z.

Switch(config)#hostname SW2

SW2(config)#vlan10

SW2(config-vlan)#vlan20

SW2(config-vlan)#vlan30

SW2(config-vlan)#exit

SW2(config)#iprouting //开启路由功能

SW2(config)#interfacevlan10 //进入虚拟局域网

SW2(config-if)#

%LINK-5-CHANGED:InterfaceVlan10,changedstatetoup

SW2(config-if)#ipaddress192.168.1.254255.255.255.0 //进行IP配置与PC网关相同

SW2(config-if)#noshutdown //打开端口

SW2(config-if)#exit

SW2(config)#interfacevlan20

SW2(config-if)#

%LINK-5-CHANGED:InterfaceVlan20,changedstatetoup

SW2(config-if)#ipaddress192.168.2.254255.255.255.0

SW2(config-if)#noshutdown

SW2(config-if)#exit

SW2(config)#inter

SW2(config)#interfacevlan30

SW2(config-if)#

%LINK-5-CHANGED:InterfaceVlan30,changedstatetoup

SW2(config-if)#ipaddress192.168.3.254255.255.255.0

SW2(config-if)#noshutdown

SW2(config-if)#exit

SW2(config)#interfacef0/1

SW2(config-if)#switchporttrunkencapsulationdot1q //修改三层交换机的封装格式

SW2(config-if)#switchportmodetrunk //将端口f0/1模式改为trunk

SW2(config-if)#

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/1,changedstatetodown

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceFastEthernet0/1,changedstatetoup

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceVlan10,changedstatetoup

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceVlan20,changedstatetoup

%LINEPROTO-5-UPDOWN:LineprotocolonInterfaceVlan30,changedstatetoup

SW2(config-if)#end

SW2#

%SYS-5-CONFIG_I:Configuredfromconsolebyconsole

SW2#showinterfacestrunk //查看trunk信息

PortModeEncapsulationStatusNativevlan

Fa0/1on802.1qtrunking1

PortVlansallowedontrunk

Fa0/11-1005

PortVlansallowedandactiveinmanagementdomain

Fa0/11,10,20,30

PortVlansinspanningtreeforwardingstateandnotpruned

Fa0/11,10,20,30

Switch#showinter

Switch#showinterfacesvlan

%Incompletecommand.

SW2#showvlan

VLANNameStatusPorts

----------------------------------------------------------------------------

1defaultactiveFa0/2,Fa0/3,Fa0/4,Fa0/5

Fa0/6,Fa0/7,Fa0/8,Fa0/9

Fa0/10,Fa0/11,Fa0/12,Fa0/13

Fa0/14,Fa0/15,Fa0/16,Fa0/17

Fa0/18,Fa0/19,Fa0/20,Fa0/21

Fa0/22,Fa0/23,Fa0/24,Gig0/1

Gig0/2

10VLAN0010active

20VLAN0020active

30VLAN0030active

1002fddi-defaultact/unsup

1003token-ring-defaultact/unsup

1004fddinet-defaultact/unsup

1005trnet-defaultact/unsup

VLANTypeSAIDMTUParentRingNoBridgeNoStpBrdgModeTrans1Trans2

--------------------------------------------------------------------

1enet1000011500-----00

10enet1000101500-----00

20enet1000201500-----00

30enet1000301500-----00

1002fddi1010021500-----00

1003tr1010031500-----00

1004fdnet1010041500---ieee-00

1005trnet1010051500---ibm-00

RemoteSPANVLANs

------------------------------------------------------------------------------

PrimarySecondaryTypePorts

---------------------------------------------------------------------------

SW2#

SW2#showiproute //查看路由表

Codes:C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGP

D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea

N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2

E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGP

i-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,ia-IS-ISinterarea

*-candidatedefault,U-per-userstaticroute,o-ODR

P-periodicdownloadedstaticroute

Gatewayoflastresortisnotset

C192.168.1.0/24isdirectlyconnected,Vlan10

C192.168.2.0/24isdirectlyconnected,Vlan20

C192.168.3.0/24isdirectlyconnected,Vlan30

Switch#

实验结果

PC>ping192.168.2.1

Pinging192.168.2.1with32bytesofdata:

Requesttimedout.

Replyfrom192.168.2.1:bytes=32time=1msTTL=127

Replyfrom192.168.2.1:bytes=32time=0msTTL=127

Replyfrom192.168.2.1:bytes=32time=0msTTL=127

Pingstatisticsfor192.168.2.1:

Packets:Sent=4,Received=3,Lost=1(25%loss),

Approximateroundtriptimesinmilli-seconds:

Minimum=0ms,Maximum=1ms,Average=0ms

PC>ping192.168.3.1

Pinging192.168.3.1with32bytesofdata:

Requesttimedout.

Replyfrom192.168.3.1:bytes=32time=0msTTL=127

Replyfrom192.168.3.1:bytes=32time=0msTTL=127

Replyfrom192.168.3.1:bytes=32time=0msTTL=127

Pingstatisticsfor192.168.3.1:

Packets:Sent=4,Received=3,Lost=1(25%loss),

Approximateroundtriptimesinmilli-seconds:

Minimum=0ms,Maximum=0ms,Average=0ms

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